Sad that the Windows Update doesn't find the bug. Has that Update program ever found anything in the history of Windows Mobile/Pocket PC?

The WM updater program is essentially abandonware.

It's not used because MS (for many reasons) doesn't want to blindly push stuff out because too many devices are too specific. While it's highly unlikely this patch would break something, there may be devices out there that it could, and since MS can't test each individual device they can't push to all of them.